1979 DATSUN 210 fuel tank removal

OPERATION

Fuel

vapors
from

the
sealed
fuel

tank
are
led
into
the
carbon
canister

The
canister

is
filled
with
activated

charcoals
to
absorb
the
fuel

vapors

when
the

engine
is

at
rest
or
at

idling

t

Fuel
tank

2

Fuel
filler

cap
with

vacuum

re1ief
va1ve

3
Fuel
check
vslve

4

Vapor
t
line

5
Vacuum

signal
line

6
Canister

purge
line
Emission
Control

System

As

the
throttle
Valve

opens
and
car

speed
increases
vacuum

pressure
in

the
vacuum

signajline
forces
the

purge

control

valve
to

open
and
admits
an

orifice
to

intake
manifold
and
fuel

vapor
is

then
drawn
into
the
intake

manifold

through
the
canister

purge

line

Fuel
vapor

7
Throttle
valve
IZ
Filter

8

Engine
13

Purge
control
valve

9
Carbon

cani5t
14

DiaphraP
spring

10
Activated
carbon
IS

Diaphngm

II
Screen
16
Fixed
orifice

EC785

Fig
EC
JOS

Evaporative
Emiuion
Control

System

Fuel

vapor
flow
when
ngine
is
at
rest
or

running

REMOVAL

AND

INSTALLAtiON

CARBON
CANISTER
FILTER

Check
for
a

contantinated

element

Elemenl
can
be
removed
at
the

bottom
of
canister

installed
on

car

body

EF201

Fig
EC
I06

Replacing
Carbon

Canilttr
Filter
CHECK
VALVE

The
check
valve
is

located
behind
the

luggage
compartment
board
on
the

fuel
tank

Remove

the

luggage

compartment

board
and
disconnect

the

vapor
tube

The
check

valve
can
then
be

taken

out

EC315A

Fig
EC
I07

Removing
Check

Volve

EC
36
INSPECTION

FUEL
TANK

AND

VAPOR
VENT
LINE

1

Check
all
hoses
and
fuel
tank

filler

cap

2

Disconnect
the

vapor
vent
line

connecting
carbon
canister
to

check

valve

3
Connect
a
3
w

y
connector

a

manometer
and
a

cock
or
an

equi

valent
3

way
charge
cock
to
the
end

of
the
vent
line

EC183A

Fig
EC
IOB

Vent
Line

4

Supply
fresh
air
into
the

vapor

vent
line

through
the
cock
little

by

little
until

pressure
becomes
368

mmHZO
14
5

inHZO

S
Shut
the
cock

completely
and

leave
it

unattended

6
After
2
5
minutes
measure
the

height
of
the

liquid
in

the
manometer

7

Variation
in

height
should
remain

with
25

mmHZO
0
98

inH20

8
When
filler

cap
does
not
close

completely
the

height
should

drop
to

zero
in

a
short
time

9
If
the

height
does
not

drop
to

zero
in

a
short
time
when
ruler

cap
is

d
it
is

the
cause
of

a

stuffy

hose

Note

In
case
the
vent
line
is

stuffy

the

breathing
in
fuel
tank
is
not

thoroughly
IIIIIde
thus

causing
in

sufficient

delivery
of
feul
to

engine

or

vapor
lock
It

must
therefore
be

repaired
or

replaced

Engine
Control
Fuel
Exhaust

Systems

REMOVAL

WARNING

When

replacing
fuel
line

parts
be

sure
to
observe
the

following

a
Put
a
CAUTION
INFLAM

MABLE

sign
in

workshop

b
Be

sure
to
furnish

workshop

with
In

asphyxiator

c
Be
sure
to
disconnect

battery

ground
cable
before

conducting

operations

d
Put
drained
fuel
in
an

explosion

proof
container
and

put
on
lid

securely

FUEL
TANK

Sedan

I

Disconnect
battery
ground
cable

2
Drain
fuel
from
fuel
tank

then

disconnect
fuel
hose

3
Remove

filler
hose

protector

and

inspection
cover
in

luggage
com

i
tl

f

I

Filler
hose

protector

2

Inspection
cover

FE561

Fig
FE
4

Removing
Filler
Hose

Protector
and
Inspection

Cover

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector

I

JI

I

2
FE562

3

Fig
FE

5
Di

connecting
Ho
e
and

Connector
5
Remove
fuel
tank

protector

6
Remove
fuel
tank

Hatchback
and

Wagon

I
Disconnect

battery

ground
cable

2
Drain

fuel
from
fuel
tank

then

disconnect
fuel
hose

3

Remove

luggage
carpet
luggage

board

inspection

covef
and
side
finish

er

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector
See

Fig
FE

5

5
Remove

fuel
tank

protector

6
Remove
fuel
tank

FUEL
TANK
GAUGE
UNIT

Sedan

1
Remove

inspection
cover
in

lug

gage
compartment
See

Fig
FE
3

2

Disconnect
fuel
tank

gauge
unit

wire
connector

3
Remove
fuel
tank

gauge
unit

Hatchback
and

Wagon

I
Remove

luggage
carpet
luggage

board
and

inspection
cover

2

Disconnect
fuel
tank

gauge
unit

wire

connector

3
Remove
fuel
tank

gauge
unit

CHECK
VALVE

Sedan

I
Remove

inspection
cover
and
fuel

filler
hose

protector
in

luggage
com

partment

2
Remove
check
valve

Hatchback

I
Remove

luggage
carpet
luggage

board
and

luggage
side
finisher

2
Remove
check
valve

Wagon

I
Remove

rear
side
finisher
in

luggage
compartment

2
Remove
check
valve

FE
5
FUEL
TUBE

Fuel
tubes
are
serviced

as
an
assem

bly
so
that
the

replacement
of
fuel

tube

can
be

easily
done
However

do

not
disconnect

any
fuel
line
unless

absolutely
necessary

Drain

fuel
from
fuel
tank

2

Loosen
fuel
hose

clamps
and
dis

connect
fuel
tube

at
each
end

Note

Plug
hose
and
tube

openings
to

prevent
entry
of
dust
or
dirt
while

removing

3
Unfasten

clips
that

hold
tube
on

underbody
and

remove
tube

from
the

car

FUEL

FILTER

I
Disconnect
fuel
hoses
from
fuel

filter

by

removing
clamps

2

Take
out
fuel
strainer
and
discard

it

INSPECTION

FUEL
TANK

Check
fuel
tank
for

cracks
or
defor

mation

If

necessary
replace

FUEL
HOSE

Inspect
all
hoses
for
cracks

fatigue

sweating
or
deterioration

Replace
any
hose
that
is

damaged

FUEL
TUBE

Replace
any
fuel
tube
that

is
crack

ed
rusted

collapsed
or
deformed

FUEL
FILTER

Replace
fuel
filter
at
the

specified

maintenance
interval
or

if
it

becomes

clogged
or
restricted

Fuel
filter
is
of
a

cartridge
type
and

cannot
be
cleaned

Always
replace

with

a
new
one

CHECK
VALVE

1
Blow
air

through
connector

on

fuel
tank
side

A
considerable
resistance
should
be

felt
at
the
mouth
and
a

portion
of
air

Engine
Control

f1lel
Exhaust

Systems

flow
be
directed
toward

atmosphere

side

2

Blow
air

tluough
connector
on

atmosphere
side
Air

flow
should
be

smoothly
directed
toward

fuel
tank

3
If

cbeck
valve
is

suspected
of
not

being
properly
functioning
in

steps
I

and
2
above

replace

To

fuel
tank

FE477
Pressure
valve

Vacuum
valve

Return

spring

Fig
FE
6

Checking
Check
Valve

INSTALLATION

Install

any
parts
of
the
fuel

system

in

the
reverse
order
of

removal
Ob

serve

the

following
notes
Note

a

Install
hose

clamps
securely
Do

not

tighten
excessively
to
avoid

dam

aging
hoses

b
Fasten

clips
holding
fuel
tube
on

underbody
securely
Failure
to
fol

low

this
caution
could
result

in

damage
to
the
surface
of
fuel
tube

c
Do

not
kink
or
twist
hOse
and
tube

when

they
are

routed

d
Run

the

engine
and
check
for

leaks

at
connections

FUEL

TANK

Not

InstaU
fuel
filler
hose
after
fuel

tank
has

been
mounted
in

place

Failure
to
foUow

this
rule
could

result
in

leakage
from
around
hose

connections
Do
not

twist
or
smash

vent
hoses
when

they
are
routed

Be

sure
to
retain
them
with

clips

securely

FE
6
@
Tightening

torque

Drain

plug

1
6

to
2
4

kg
m

112
tn
17
ft
bl

Fuel

tank

0
8

to
1
2

kll
m

15
8
to
8
7

ft
Ibl

FUEL

TANK
GAUGE
UNIT

Note
When

installing
fuel
tank

gauge

unit

aJign
the

projection
of
tank

gauge
unit

with
the
notch
in

fuel

tank
and

tighten
it

securely
Be
sure

to
instaU

tank

gauge
unit
with

O

ring
in

place

CHECK

VALVE

Note
When

installing
check
valve
be

careful
of
its

designated
direction

See

Fig
FE

Body
Electrical

System

DISASsEMlU
Y
AND
ASSEI
t18LV

BE126D

Fig
BE
21

Combination
Meter

TACHOMETER
7
Install
tachometer
in

the
reverse

order
of
removal

REMOVAL
AND

INSTALLATION

I

Disconnect

battery

ground
cable

2
Remove
combination
meter

3

RemO
e

speedometer
reset
knob

4

Disconnect
tachometer

connector

from

printed
circuit
board
terminal

5
Remove
screws

securing
printed

circui
t

board

6
Remove
tachometer

by
loosening

retaining
screws
BE744C

Fig
BE
22
Tachometer

BE
14
FUE
LEVELAND

WATER

TEMPERATURE

INDICATOR
SYSTEM

REPLACEMENT

G11l1ge

I
Remove
combination
meter

2
Disconnect

harness
connector

from
terminal
on

printed
circuit

board

3
Remove

retaining
screws

4
Install
new

gauge
in
the
reverse

order
of
removal

Fuel
tank

gauge
unit

Fuel

tank

gauge
unit
is
located
on

fuel
tank

Refer
to
Fuel
Tank

Gauge

Unit

Section
FE
for
removal

and

installation

Thermal
transmitter

I
Disconnect
lead
wire

from
termi

naL

2
Remove

thermal
transmitter

by

loosening
it

oountercIockwise

3

Install
new
thermal
transmitter
in

the
reverse
order
of
removal

Note
Be
aure

to

apply
conductive

sealer
to
threads

prior
to

installing

new
hennal
transmitter